Hoist.



PATENTED OCT. 11, 1904. T. E. BROWN. I

HOIST.

APPLIOATION FILED APR. 21, 1903.

3 SHEETS-SHEET 1 N0 MODEL INVENTOR w 6 m WITNESSES:

ATTORN EY No. 772,084. I PATENTED OCT, 11, 1904.

T. E. BROWN.

HOIST.

APPLICATION FILED APR. 21, 1903.

N0 MODEL. 3 SHEETS-SHEET 2- WITNESSES: I i INVENTOR fl fl LS P "N W 0 R B m. m

HOIST.

APPLIOATION FILED APR. 21, 1903.

N0 EL. 3 SHEETS-SHEET a.

WITN ESSES 'INVENTOR f/ilw, 56mm ATTORNEY UNITED STATES Patented October 1 1, 1 904:.

PATENT OFFICE.

THOMAS E. BROWN, OF NEW YORK, N. Y., ASSIGNOR TO OTIS ELEVATOR COMPANY, OF EAST ORANGE, NEWV JERSEY, A CORPORATION OF NEW JERSEY.

* HOIST.

SPECIFICATION forming part of Letters Patent No. 772,084, dated October 11, 1904.

Application filed April 21, 1903.

To all whom, it may concern:

Be it known that I, THOMAS E. BROWN, a citizen of the United States, residing in the borough of Manhattan, city, county, and State of a side elevation of a hoist embodyingmy invention and a sectional view of an operating or controlling station, the controlling apparatus located therein being shown diagrammatically. Fig. 2 is a detail view, in side elevation, of a traveling carriage or trolley comprised in my invention. Fig. 3 is a view, partly in elevation and partly in vertical transverse section, of the hoist shown in Fig. l, the section being taken on the line 3 3 of Fig. 1. Fig. 4 is detail side elevation of a part of the hoist shown in Fig. 1, showing the traveling carriage or trolley in vertical longitudinal section and in a position different from that shown in Fig. l.

Similar letters of reference designate corresponding parts in all of the figures of the drawings.

Referring now to the drawings, A designates an incline which, as here shown, comprises two side members a, formed from structural iron or other suitable material in such manner as to obtain great strength. They are shown joined together at their upper edges by cross-pieces a and further braced by means of inclined braces (4 The incline is supported intermediate its ends bya column or columns B of any desired construction, and one end of the incline A is anchored or otherwise firmly secured on the ground. Each side member of the incline is provided with rails (0 on which a carriage or trolley C travels. The

carriage O is here shown as comprising a skeleton body 0, mounted on wheels 0, the axles for which rotate in suitable ournals carrled Serial No. 153,645. (No model.)

by the body 0. The carriage also comprises a sheave or pulley c suitably journaled on the body, a transversely-arranged stop plate or bar 0 having a resilient facing c, and a spring-buffer 0 which is suitably supported in the end of the carriage.

The travel of the carriage O up and down the incline A is effected by means of a cable D, which cable also serves to raise and lower receptacles E, containing ore, &c., for the furnace F, which is arbitrarily represented. One end of the cable is provided with a hook G or other equivalent device for engaging the receptacle, and the cable passes through an opening in the stop plate or bar 0 over the sheave 0 mounted on the carriage, around a sheave or pulley c suitably journaled at the upper end of the incline, and over a guide pulley or pulleys 0 The other end of the cable is secured to a drum H, which may be rotated in opposite directions by a motor I. The motor I is here shown as being an electric motor. 2' designates a starting-rheostat, and in the event of the motor being operated inreverse directions a reversingswitch is employed. The drum may be rotated in one direction only by the motor and allowed to run free in the opposite direction by reason of gravity acting on the carriage and receptaclel In the latter use a suitable brake it should be employed to stop the rotatidn of the drum. In order that the carriage may be limited in its downward movement or stopped in the proper position to raise and lower the receptacles E from cars J, I provide stops K K, the number of stops being determined by the number of tracks provided for the cars carrying the receptacles. In case a plurality of stops are employed'all except the last are capable of being moved or shifted out of the path of travel of the carriage. In the drawings I have shown two stops and each as consisting of a plate of suitable material extending transversely of the incline and in the path of travel of the carriage, the first of which (marked K) is movable. A convenient way of moving or shifting the stops out of the path of travel of the carriage is to suspend the stops by means of ropes 7b, which pass around sheaves or drums 70, carried by a shaft 71: which is suitably journaled on the structure, and rotating the shaft 70 by means of an endless rope or belt 75, which passes around a sheave or pulley k on the shaft 71 and around a sheave or pulley r, located at the operating station. The sheave or pulley 70 is provided with a handle is, by which it may be rotated.

In order that the carriage may be held at the top of the incline to permit of the receptacle connected with the cable being lowered into the furnace, I provide a holding device M. The holding device, as here shown, comprises a catch or catch-piece m carried on a shaft m, which catch (see Fig. 4E) engages the carriage or a projection carried by the carriage. The shaft is loosely journaled, and the catch is held in such position by a stop of that the catch will be lifted by the carriage in its upward travel and pass beneath it, so that it will engage the carriage at the proper point. The catch is disengaged from the carriage by means of a solenoid or electromagnet of, the movable core of which is connected by a link m with the arm 972 rigid with the shaft. An adjustable counterweight m,mounted on an arm m, rigid on the shaft, is preferably employed to assist the solenoid or magnet in rocking the shaft to disengage the catch from the carriage. The clrcuit for the solenoid or magnet includes a source of electrical automatically or otherwise.

supply on and a switch m The switch m is shown as being located in the operating-station and is employed to open and close the circuit of the solenoid as desired.

The operation of the hoist is as follows, assuming that the hoist is to be operated in connection with two tracks on which run the cars J, carrying the receptacles E: Referring now to Fig. 1, which illustrates the carriage C against the first stop K and the cable D lifting a. receptacle, the drum having been started winds the cable and raises the receptacle up to the carriage until the buffer N, provided in the cable, engages the stop plate or bar 0. (See Fig. 2.) The bufferN is preferably provided with a spring 91/ to take up strains due to the impact of this engagement. Guards L (see Fig. 3) are secured to the structure to prevent theimpact of the buffer N against the carriage raising the wheels 0 from the track. The further winding of the cable causes the carriage and receptacle to travel to the top of the incline. The drum is then rotated or allowed to rotate in the opposite direction to lower the receptacle into the furnace, and the carriage is then engaged by the holding device H. The receptacles E may be of any desired construction and arrangement, and their contents may be discharged After the contents have been discharged the receptacle is again raised to the carriage and the carriage released from the holding device by closing the circuit of the solenoid or magnet through the switch m. The carriage is then permitted or caused to travel back to the first stop and the receptacle lowered onto the car. In case the next receptacle to be raised is located on a track beyond the vertical plane of the first stop this stop is raised and the carriage moved down to the next stop.

It will be understood that the incline may be of any length and that the location of the holding device on the incline is determined by the position of the top of the furnace relatively to the incline-that is to say, the holding device is arranged on the incline at such a point that the carriage after it comes to rest will permit of the receptacle being lowered directly into the furnace or to such a position that its contents may be discharged into the center of the furnace. The position of the stops K K on the incline is determined by the position of the tracks for the cars J relatively to the incline.

While I have described my invention in connection with furnaces and cars, it will be understood that it may be used wherever it is desired to raise or lower receptacles from or to predetermined points.

If it is desired to stop the carriage at any point on the incline, either additional stops or holding devices may be employed and arranged at such points.

What I claim as my invention is 1. The combination in a hoist, of an incline, a carriage adapted for travel up and down said incline, means comprising a cable for effecting the travel of said carriage and the raising and lowering of receptacles, and a holding device for said carriage which holding device is mounted on the incline, said holding device comprising a catch and an electromagnetic device for moving said catch to disengage it from the carriage.

2. The combination in ahoist, of an incline, a carriage adapted for travel up and down said incline, means comprisinga cable for effecting the travel of said carriage and the raising and lowering of receptacles, and a holding device for said carriage at the upper portion of the incline and comprising electrically-actuated means for disengaging it from the carriage.

3. The combination in a hoist, of an incline, a carriage adapted for travel up anddown said incline, means comprising a cable for effecting the travel of said carriage and the raising and lowering of receptacles, a holding device for said carriage at the upper portion of the incline and comprising electrically actuated means for disengaging it from the carriage, and one or more movable stops for limiting the downward movement of the carriage on the incline.

4. The combination with a furnace, of tracks adjacent said furnace for cars carrying receptacles, an incline extending over the tracks and above the furnace, a carriage adapted for travel up and down the incline, means comprising a cable for effecting the movement of the carriage up and down the incline and the raising and lowering of receptacles from the cars and furnace, a holding means for the car at the upper portion of the incline and adjacent the furnace, and movable stops on the lower portion of the incline for the carriage, said stops being located on the incline relatively to the tracks that the receptacles may be raised and lowered onto the cars.

5. The combination with one or more tracks for cars carrying receptacles, of an incline, a carriage adapted for travel up and down the incline, means comprising a cable for effecting the travel of the carriage and the raising and lowering of the receptacles carried by the cars, and one or more movable stops on the incline for the carriage, said stops being located on the incline relatively to the tracks that the receptacles may be raised and lowered onto the cars.

6. The combination with one or more tracks for cars carrying receptacles, of an incline, a carriage adapted for travel up and down the incline, means comprising a cable for effecting the travel of the carriage and the raising and lowering of the receptacles carried by the cars, one or more stops on the incline for the carriage, said stops being located on the incline relatively to the tracks that the receptacles may be raised and lowered onto the cars, and means for moving one or more of the stops out of the path of travel of the carriage.

7. The combination in a hoist, of an incline provided with tracks, a carriage adapted for travel upand down the incline on said tracks, a stop plate or bar carried by said carriage, means comprising a cable for effecting the travel of the carriage up and down the incline, a spring-buffer comprised in the cable for coacting with the stop plate or bar, and

guards attached to the incline for preventing the carriage leaving the tracks.

8. The combination in a hoist, of an incline provided with tracks, a carriage adapted for travel up and down the incline on said tracks, a stop plate or bar carried by said carriage, means comprising a cable for effecting a travel of the carriage up and down the incline, and a spring-buffer comprised in the cable for coacting with the stop plate or bar.

9. The combination of an incline, a carriage and means for causing a travel of the carriage on said incline, a holding device for the carriage at the upper portion of the incline, one

or more stops provided at different points on the incline against which the carriage is adapted to rest, and each of said stops consisting of a plate arranged transversely of the incline, and means for moving one or more of the stops out of the path of travel of the carriage whereby the carriage may be stopped at different points on the incline.

10. The combination of an incline, a carriage and means for causing the travel of the carriage on said incline, a holding device for the carriage at the upper portion of the incline one or more stops provided at different ,points on the incline against which the carriage rests, and means for moving one or more of the stops out of the path of travel of the carriage, said means for each movable stop comprising sheaves or drums mounted on a shaft journaled on the incline, ropes connected with the stops and passing around the sheaves or drums and means for rotating said shaft.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

THOS. E. BROWVN. Witnesses: I

GRIFFITH JOHN, ERNEST W. MARSHALL. 

